Effects of Different Tillage Techniques on Yield and Water Use Efficiency in Broomcorn Millet  

不同耕作方式对糜子产量及水分利用效率的影响（英文）

作　　者：陈凌[1] 乔治军[1] 王君杰[1] 王海岗[1] 曹晓宁[1] 田翔[1] 刘思辰[1] 秦慧彬[1] 杨光宗[2] 

机构地区：[1]山西省农业科学院农作物品种资源研究所、农业部黄土高原作物基因资源与种质创制重点实验室、杂粮种质资源发掘与遗传改良山西省重点实验室,山西太原030031 [2]山西省农业科学院,山西太原030031

出　　处：《Agricultural Science & Technology》2017年第3期432-434,437,共4页农业科学与技术（英文版）

基　　金：Supported by Youth Scientific Research Fund of Shanxi Province(2014021031-2);Fund for National System of Broomcorn Millet Industrial Technology of Ministry of Agriculture(CARS-07-13.5)~~

摘　　要：[Objective] The effects of different tillage techniques on dry matter accu- mulation, soil water content, water use efficiency and yield of broomcom millet were studied. [Method] With Jinsu 9 as an experiment material, the effects of deep tillage, traditional tillage and no tillage and rotary tillage on dry matter accumulation, soil water content, water use efficiency and yield of broomcom millet were investi- gated. [Result] Dry matter accumulation rate and accumulated amount were signifi- cantly higher in the deep tillage, no tillage and rotary tillage treatments than in the conventional tillage treatment, and the highest in the deep tillage treatment. The soil water content of the deep tillage treatment at 0-100 cm was higher than those of other tillage techniques, deep tillage also exhibited the highest soil water storage, and water use efficiency values were in order of deep tillage〉rotary tillage〉no tillage〉conventional tillage. The deep tillage treatment also showed the highest grain weight per spike, 1 000-grain weight and yield, while conventional tillage exhibited the lowest values, indicating that deep tillage is most beneficial to improvement of yield and water use efficiency of broomcom millet. [Conclusion] This study provides a scientific basis for water use efficiency of broomcorh millet in its main producing areas.[目的]明确不同耕作方式对糜子的水分利用效率及产量的影响。[方法]采用深耕、传统耕作、免耕、旋耕4种耕作方式,以晋黍9号为材料,研究不同耕作方式对糜子干物质积累量、土壤含水量、水分利用效率以及产量的影响。[结果]深耕、免耕、旋耕这3种耕作措施的干物质积累速度和积累量要明显高于传统耕作,且深耕最为明显;深耕在0~100 cm处的土壤含水量高于其它耕作方式,且土壤贮水量最大,水分利用效率排序依次为深>旋>免>传;穗粒重、千粒重和产量都以深耕处理的最大,传统耕作方式的最小。表明在4种耕作方式中,深耕有利于糜子产量和水分利用效率的提高。[结论]该研究为糜子主产区提高水分利用效率提供了科学依据。

关 键 词：Tillage techniques Broomcorn Millet Water use efficiency YIELD 

分 类 号：S516[农业科学—作物学]